baber/WOPTO huggingface dataset:
Patent GB-775414-A (GB)
Title: Improvements in or relating to light-sensitive elements and the production of reliefand printing images therefrom
IPC: G03F7/021
Filed: 1955-09-26
Abstract: 775,414. Light-sensitive elements for photomechanical procedure. DU PONT DE NEMOURS & CO., E. I. Sept. 26, 1955 [Nov. 8, 1954], No. 27395/55. Class 98(2) A support carries a layer of a hardened water-permeable protein colloid containing a light-sensitive diazonium salt of formula HOOC - R - N 2  - X wherein R is a benzene or naphthalene residue containing the specified groups in the ortho position to each other and X is a salt-forming acid radical. Certain ring-substituting groups also may be present. The layer may be exposed imagewise to soften and produce hydrophilic properties in light-affected portions and so provide an offset printing element, or may be washed to remove the softened portions and provide, usually in the case of a thicker layer, a relief printing element. Eight examples specify gelatin as colloid and a ninth albumin, and a diazotized anthranilic acid salt is the sensitizer in all examples; thus in Example 1 a cellulose acetate film bearing a layer of gelatin hardened with chrome alum and formaldehyde is treated with an aqueous solution of this sensitizer, dried, exposed to a mercury vapour lamp under a positive live transparency, washed in hot water and rubber with the fingers or a cotton pad to give a positive relief image. Example II is very similar. Example III uses a much weaker sensitizing solution and processing by immersion only in hot water to give a negative relief image by swelling of the exposed portions, or a weak relief image by drying this, and describes the use of a dye solution as of phenosafranine to produce a visible image by differential absorption in the unexposed and exposed areas. Example IV treats the exposed layer with an azo coupler in alkaline solution before the hot water processing to leave a coloured positive relief image. Examples V and VI indicate such pretreatment with caustic soda solution to give coloured positive reliefs by some coupling between undecomposed diazo compound and gelatin. In Examples VII and VIII white sized paper and a granulated zinc plate respectively are provided with a thin layer of chrome alum hardened gelatin, treated with the sensitizer solution, exposed, treated with water and then greasy ink which adheres to the unexposed portions only. In Example IX a thin albumin-bichromate layer on a zinc plate is exposed uniformly for hardening, sensitized, exposed, inked and then water treated to remove the ink from exposed portions. Numerous other supports, protein colloids and hardeners therefor, and amines from which the diazonium sensitizers may be made are quoted in the Specification, as also are fillers or reinforcing powders for the sensitizing solutions. Use of the process for product of direct positive offset plates is emphasized, Specifications 617,129 and 718,422 are referred to.
Patent GB-1235423-A (GB)
Title: Separation of alkylation effluents
Inventor: SULZBACH THOMAS LEE
IPC: C07C67/00
Filed: 1969-05-30
Abstract: 1,235,423. Separating alkylation effluents. UNIVERSAL OIL PRODUCTS CO. 30 May, 1969 [6 June, 1968], No. 27401/69. Heading C5E. In a process for alkylating an excess of benzene with an olefin in the presence of an alkylation catalyst, e.g. solid phosphoric acid, and an inert diluent, e.g. a paraffin, the effluent is subjected to the following separation sequence: (a) separation in a first rectifying zone to provide a 1st fraction comprising diluent and benzene, and a 2nd fraction comprising unreacted benzene and alkylbenzene product; (b) separating at least part of said 1st fraction in a second rectifying zone into a 3rd fraction comprising diluent and a 4th fraction comprising benzene; (c) returning said 4th fraction to the alkylation zone; and (d) separating said 2nd fraction to provide a 5th fraction comprising benzene (which may be at least partly recycled to alkylation) and a 6th fraction comprising alkylbenzene product which may be recovered by further processing. Reflux to the first rectifier may be provided by part of the 5th fraction, and to the second by part of the 3rd fraction. The 1st fraction may be cooled, before step (b), by indirect heat exchange with the 4th and/or 5th fraction, and part of the 1st fraction may be partially condensed to provide a vapour phase for treatment in step (b) and a liquid phase which is recycled to alkylation. Fresh benzene may be introduced into the plant via the second rectifier. A flow-sheet is provided, and details of operating temperatures and pressures are given. In the detailed description the alkylating agent is propylene, the inert diluent is propane and the product is cumene, but the process is also applicable to ethylbenzene manufacture.
Patent GB-821123-A (GB)
Title: Improvements in or relating to air-conditioning
IPC: F24F1/01
Filed: 1957-08-30
Abstract: 821,123. Ventilation. CARRIER ENGINEERING CO. Ltd. Aug. 30, 1957, No. 27461/57. Class 137 An air conditioning system for a multiroom building comprises an air conditioning unit having a plenum forming conduit and a heat exchanger, the conduit being spaced from and beneath the heat exchanger and being connected to a riser from a supply of primary conditioned air, and means co-operating with openings spaced apart lengthwise of the conduit, facing and adjacent the heat exchanger, to discharge primary air and induce secondary air to pass through the heat exchanger. As shown, primary air from a riser 5 passes along a conduit 12 arranged below a heatexchanger 15 comprising a coil and fins. The conduit 12 may have a butterfly valve 41 and sound absorbing sleeve 42 and be arranged with holes 43, into which plugs 51 or nozzles 46 of the desired size may be inserted, below the heat exchanger. The induced air and primary air mix, pass through the heat exchanger and are discharged through a grille 57. The system is stated to be particularly suitable for application to buildings which have existing heat exchangers. Specification 809,904 is referred to.
Patent GB-284760-A (GB)
Title: Improvements in and relating to electric fuse holders
IPC: H01H85/044
Filed: 1926-11-02
Abstract: 284,760. British Thomson-Houston Co., Ltd., Salisbury, A. G., and Woodfield, T. H. Nov. 2, 1926. Fusible cut-outs. - A fuse carrier comprises a stem 1 to which pole pieces 3, 4 are hinged so as to form grips for the fuse wire 6 that lies in a groove 5 in the stem. Spare fuses 8 are contained in a recess 7 in the stem, the end of one pole piece 4 being bent to form a closure for the recess. The carrier is inserted in a switchboard, the pole pieces making contact with fixed clips.
Patent GB-328529-A (GB)
Title: An improved fish landing noose for use in angling
IPC: A01K97/14
Filed: 1929-09-11
Abstract: 328,529. Hardy Bros. (Alnwick), 1928, Ltd., and Hardy, L. R. Sept. 11, 1929. Landing-nooses. - A telescopic landing-noose comprises a flexible member b<1> adapted to close into a tubular member a as shown in Fig. 4 and a fine wire or gimp snood f which forms the noose. To the end of the snood is attached a sliding ring g which is secured by a clip j when the device is closed for carrying so that the snood lies along the member a. The member b<1> is formed of a wire b enclosed in a wire coil and is attached to a cork c which slides inside the member a. A clip k is provided for carrying the device.
Patent GB-158675-A (GB)
Title: Improvements in and relating to ships' outfall or storm valves
IPC: B63B29/00
Filed: 1919-11-07
Abstract: 158,675. Rae, G. H., and Wilkie, J. B. Nov. 7, 1919. Storm valves.-The valve 2, which is faced with a leather disc 1, instead of being rigidly carried by the pivot 8 is pivotally or loosely mounted at 5 in a cranked lever 3<a>, fitted with a balance weight 4, and carried by the main pivot 8. The pin 8 may be carried by a detachable valve seat fitted at 3, if desired, and the balance weight may be arranged to work in a removable side pocket 14 fitted with a screwed spindle 10, which engages a lug 9 formed on the balance weight, for positively closing the valve. A projecting rib or flatter curvature may be formed on the weighted end of the lever to limit the valve travel, and the spindle 10 may be fitted with an extension spindle, if desired.
Patent GB-140030-A (GB)
Title: Combined means for playing games of skill
IPC: A63F3/02
Filed: 1919-11-08
Abstract: 140,030. Turner, E. S. F. Nov. 8, 1919. Card games; board games; scoring and marking apparatus.-A game partaking of chess and bezique is played on a chequered board to which are hinged scoring dials 4 with pointers 6, 7, one pointer for scoring on one half of the dial and the other pointer for scoring on the other half. Two packs of playing cards are used, the cards of one pack having distinguishing marks on the face, for example, coloured cross bars. In playing the game a number of cards are placed on the chequered board and are subsequently moved and captured after the manner of chess the resulting scores being marked on the dials in a manner similar to bezique.
Patent GB-666457-A (GB)
Title: Carbonyl chlorides and monocarboxyamides of piperazine and process for the preparation thereof
IPC: C07D295/215
Filed: 1949-10-28
Abstract: In a process of preparing carboxyamides of 1-methyl-piperazine, e.g. compounds of the general formula <FORM:0666457/IV (b)/1> where X represents a carboxyamide group, a 1-methyl piperazine-4-carbonyl chloride or the hydrochloride thereof is reacted with a primary or secondary alkyl, aryl or heterocyclic amine.  The 1-methyl-piperazine-4-carbonyl chloride may be formed by reacting 1-methyl-piperazine or its mono- or dihydrochloride with phosgene. Examples describe the preparation of (1-3) 1-methyl-piperazine-4-carbonyl chloride and its hydrochloride by reaction of N-methyl piperazine dihydrochloride with phosgene; (4-8) the corresponding carboxyamide by reacting 1 - methyl - piperazine - 4 - carbonyl chloride with (4) diethylamine; (5) dimethylamine; (6) diisopropylamine; (7) ethylamine; (8) thiodiphenylamine.  Salts of the amides, e.g. maleate, citrate or fumarate may be made by reaction with the corresponding acids. Specification 631,685 is referred to. The Specification as open to inspection under Sect. 91 refers to compounds of the above types where the 1-substituent of the piperazine nucleus is an alkyl group generally.  This subject-matter does not appear in Specification as accepted.
Patent GB-777310-A (GB)
Title: Apparatus for viewing transparencies, for example, photographic negatives and still colour photographs
IPC: G02B27/02
Filed: 1955-09-30
Abstract: 777,310. Viewing transparencies. FEATHERMAN, C., and AIKMAN, J. A. S. S. Sept. 30, 1955, No. 27836/55. Class 98(2) Apparatus for viewing transparencies consists of an opaque or translucent holder with appropriately sized apertures each having transparency-holding means comprising two strips fixed to the holder so as to overlap opposite edges of a transparency or mount inserted in the aperture, and spring means which urge the transparency or mount in a direction from one strip to the other, but may flex to enable the transparency or mount to be moved to a position wherein it may be disengaged from the strips. As shown in Fig. 1, a stiff cardboard frame 2 is formed with apertures 3, each having a finger-space 4. A leaf spring 10 is mounted in each aperture in the manner shown in Fig. 4. A thin sheet 20 fixed to the back of frame 2 has apertures 21 smaller than, and disposed concentrically with, the apertures 3. A thin sheet 25 fixed to the front of frame 2 has apertures 26 the upright edges of which coincide with the upright adges of apertures 3 in frame 2, but which are of less height than the apertures 3. The upper - edges 29 of apertures 26, which lie below the upper edges of apertures 3, have recesses 29a corresponding to the fingerspaces 4. A transparency in a mount 30 is placed between the upright edges of apertures 3, 26 and pushed down against action of spring 10 until its upper edge can be pushed under the edge 29 of the aperture 26 in the front sheet 25. On release, it is pressed up against the top of aperture 3, and rests against the edges of aperture 21 in the back sheet 20. A finger inserted in spaces 29a, 4 may engage the mount to remove it. The space at the right of the apertures is preferably greater than the space on the left. The holder may be used either for direct viewing or projection of the transparencies. Several holders may be grouped to provide a filing system.
Patent GB-482312-A (GB)
Title: Improvements relating to the drying of grasses
IPC: A23K3/02
Filed: 1936-10-14
Abstract: A process for drying and preserving freshly-cut grasses consists in heating the grasses in a liquid bath or in a closed chamber containing a moist atmosphere, to a temperature sufficient to facilitate or effect liberation of entrapped moisture (usually from 180 to 212 DEG  F.) and subsequently squeezing the grasses to remove a large part of the moisture.  The grasses are subsequently passed between rollers, which are preferably formed with circumferential V-shaped ridges.  The liquid bath may contain water, or juices squeezed from previously-treated grasses, or it may consist of a solution of molasses or any suitable preservative.  After passing through the rollers the grasses may be dried further by hot or cold air while kept in a state of agitation, or they may be stored in the moist condition in a silo.  Specification 420,040, [Group XIII], is referred to. The Provisional Specification states also that the invention may be applied to the drying of crops and other vegetable substances.
Patent GB-1112276-A (GB)
Title: Treatment of cellulosic textile materials
IPC: D06M15/423
Filed: 1965-07-01
Abstract: Cellulosic textile materials are creaseproofed by a process comprising (1) treating them with an aqueous composition containing a synthetic resin precondensate capable of condensing under acid conditions to effect cross-linking of the textile material, (2) drying them at a temperature below the condensation temperature of the precondensate and (3) treating them with aqueous sulphuric acid at a concentration and for a time so that partial condensation is effected bonding a number of reactive groups of the resin to the textile materials whilst leaving a substantial number of free reactive groups of the precondensate in an unreacted state.  The finishing of the textile materials may then be completed for example by the steps of (4) shaping, e.g. pleating, or making up the textile materials and (5) heating them in the presence of a condensation catalyst, e.g. Mg Cl2, NH4 Cl, (NH4) H2 PO4, Zn Cl2 and Zn (NO3)2 to complete condensation.  The condensation catalyst necessary in step (5) may be applied to the textile material after step (3) but before step (4).  The resin precondensate may be condensation product of formaldehyde and a p  nitrogenous compound, e.g. urea, thiourea, a cyclic urea having a 5- or 6-membered heterocyclic ring system, acetylene diurea, a carbamate or melamine.  The textile material may be padded with an aqueous solution of the resin precondensate, dried, treated with an aqueous sulphuric acid bath containing 40-60% by weight of sulphuric acid for 0.5-30 minutes, neutralised with a dilute caustic soda solution, rinsed, dried, made up into garments, padded or sprayed with an aqueous solution of the condensation catalyst and heated at 120 DEG -180 DEG C for 1-10 minutes to complete condensation.  Step 5 may be carried out in the presence of a small quantity of at least one compound capable of reacting under acid conditions with the cellulose or with itself and the cellulose, e.g. acetals, epoxides, polyepoxides, halohydrins and condensation products of formaldehyde with Ketones, urea, thiourea, cyclic ureas having a 5- or 6-membered heterocyclic ring and their hydroxy or oxo derivatives, acetylene diurea, dicyandiamide, guanidine, carbamates and melamine or etherification products thereof.  Yarns, fibres, filaments, threads or woven or nonwoven fabrics comprising natural cellulose, e.g. cotton, regenerated cellulose or cellulose derivative fibres, e.g. cellulose acetate, alone or in admixture with other natural or synthetic fibres, e.g. polyester fibres, may be treated.
Patent GB-1535655-A (GB)
Title: Automatic speed control of rectifier-fed d-c motors
IPC: H02P7/282
Filed: 1977-07-04
Abstract: 1535655 Automatic control systems MY PISTRAK and MI LAPIDUS 4 July 1977 27970/77 Heading G3R A D.C. motor in a rolling mill has a separately excited field fed through a rectifier 3 controlled by a motor voltage regulating loop 9, 10, 11, a motor back e.m.f. (ie speed) regulating loop 6, 7, 8 and a field current regulating loop 4, 5.
Patent GB-280010-A (GB)
Abstract: 280,010. White, A. E., (Gas Research Co.). May 4, 1926. Pumping-machines; casings, - In order to supply a fluid at a constant velocity, irrespective of specific-gravity variations, the fluid is subjected to centrifugal acceleration by centrifugal means and is discharged through an orifice radially disposed with respect to the centrifugal means and of such size as to permit the building up of a pressure head behind the orifice due mainly to the centrifugal acceleration imparted to the fluid. For supplying a number of fluids in proportional quantities each fluid is treated as above described, the several centrifugal means being driven at the same speed. The invention is particularly intended for supplying gas and air for combustion together in a calorimeter. The figures show this application of the invention, the gas and air being respectively supplied by two similar centrifugal pumps 150, 151 which are driven at the same speed by a motor 158. Each pump comprises a casing 152 with a cover plate 153 having an axial inlet opening 154, which, in the case of the pump 150, is connected to a supply pipe 155, while the opening of the pump 151 communicates with the atmosphere. 'Each pump is provided with radially-disposed blades 165 and a peripheral outlet 170 communicating with an enlargement 171 of the casing 152. In the case of the pump 151 a member 175 is mounted aboye the enlargement 171 and communicates therewith by a passage 176. Mounted on the member 175 is a casing 177 having an aperture 178 registering with the passage 176, and provided with an adjustable valve 181 by which the effective area of the discharge orifice can be controlled. An outlet 187 leads from the casing 177 to the pipe 43 supplying air to the calorimeter 20. In the case of the gas pump 150, in order to avoid variations in the supply rate due to the deposition of impurities in the outlet orifice, the gas is passed through a series of passages 201, Fig. 4, in a cylindrical chamber 202 to which the outlet from the pump 150 is connected by a pipe 200. The chamber 202 is provided with a cover 205 having a series of pockets 208, each adapted to overlap two adjacent passages 201. Between the members 202, 205, is a plate 210 provided with a number of holes 211, Fig. 3, so spaced that two of them will lie within the angular width of one of the passages 201, or one of the pockets 208. The gas after having traversed all the passages leaves by an orifice 215. In a modification both the pumps are arranged on the same side of the motor, the air pump being nearer the motor, and means are provided to insulate the pumps from the heat of the motor.
Patent GB-698385-A (GB)
Title: Improvements in elastomer-resin compositions
IPC: C08L9/02
Filed: 1951-11-29
Abstract: A composition comprises (a) a copolymer of from 50-90 per cent styrene and 50-100 per cent acrylonitrile or polyvinyl chloride or a copolymer of a major proportion of vinyl chloride and a minor proportion of vinyl acetate; (b) a rubbery copolymer of butadiene-1,3 and acrylonitrile; and (c) a polymer of butadiene-1,3 or a homologue or halogenated analog thereof having not more than 8 carbon atoms or a copolymer of a major proportion of butadiene-1,3 or a homologue thereof containing not more than 8 carbon atoms with a minor proportion of styrene or methyl methacrylate or a mono-vinyl pyridine, relative proportions by weight being such that (a) ranges from 50-90 per cent of the sum of (a), (b) and (c) and that (c) ranges from 2-35 per cent of the sum of (b) and (c).  Antioxidants, stabilizers such as lead carbonate and inert pigments such as titanium dioxide may also be present.
Patent GB-1480682-A (GB)
Title: Internal combustion engine fuel control systems
IPC: F01N9/00
Filed: 1975-07-03
Abstract: 1480682 Valves GENERAL MOTORS CORP 3 July 1975 [11 Feb 1975] 28011/75 Heading F2V [Also in Divisions F1 and G3] A valve to electrically regulate the vacuum from an I.C. engine induction manifold (connected to 56) applied to a fuel regulator (connected to 40) comprises a rod 64 moved vertically by an electromagnet (71, Fig. 2, not shown) and having a bore 73 open to atmosphere with a valve seating 78. Another valve seating 80 is formed in the bore 60 connected to the inlet tube 56. A single valve closure member 79 co-operates with both seatings. At a specific position of the rod 64 both valve openings are closed by 79, but downward movement opens 78 to admit admosphere into chamber 61 (which is sealed by diaphragm 65 and coupled to outlet tube 40) while upward movement opens 80 to connect the chamber to vacuum. The operation is progressive. The valve is used to control the air/fuel ratio of the engine (see Division G3).
Patent GB-985363-A (GB)
Title: Drop-outs counter
Inventor: MUTO KENJI
IPC: G11B5/02
Filed: 1963-07-16
Abstract: 985, 363. Testing magnetic tapes. AKAI ELECTRIC CO. Ltd. July 16, 1963, No. 28032/63. Heading G1N. [Also in Divisions G4 and G5] The quality of a magnetic tape is tested by playing back a uniform signal for a predetermined time and recording the number of drop-outs of a specified duration in that time. A 3 kc/s signal is impressed on the tape and at playback the output is fed through switch 2 to a visual indicator VU. The output is rectified at 4 and passed to a time constant circuit 8 which can respond either to 5 m. sec. or 20 m. sec. dropouts. A pulse resulting from a drop-out is shaped and amplified to energize the electromagnet 20 of a conventional counter. The counter is controlled by a motor cam 50 to be operative for one minute. The apparatus may be duplicated to measure both measures of drop-out simultaneously.
Patent GB-447102-A (GB)
Title: Ozonisers
IPC: C01B13/11
Filed: 1935-10-11
Abstract: 447,102. Ozone generators. READ, F. O., 26, Flanders Road, Bedford Park, London. Oct. 11, 1935, No. 28064. [Class 39 (i)] In ozone generators of the type in which the ozonizing element consists of cylindrical electrodes B, C disposed concentrically on opposite sides of a dielectric member D, the transformer T is mounted in an inner casing G which has a chimney L passing centrally through the ozonizing element so that heated air from the transformer has an injector action assisting the heat of the element to cause air to pass upwardly through the outer casing H. Preferably the chimney L supports insulating rings J, I on which the element is mounted and a series of conical baffles S, S<1> of increasing diameter are also mounted thereon to direct the rising air into close contact with the surfaces of the element. Ports A<1>, M, U, V are provided in the base and top of the casing H for the inlet and outlet of air and a perforated container N may be mounted in the base of the casing for substances such as viscous coated fabric or silica gel by which the air entering the casing is dried or otherwise treated.